Him expanding and contracting tool



C. B. HOWELL.

HIM EXPANDING AND CONTRACTING TOOL.

APPucATuoN mao MAn.2. 191sK 1,317,136. IateniedSept. 23, 1919.

fl .ifi @if /f /ffre/vfaf man@ .6mm/72 /iawev/ Ma/70m] shaped element having a UNITED STATES PATENT OFFICE. um Basson nownnn, or Los oanriromnta.l

Speemeatton c! Letters Patent.

Patented Sept. 23, 1919.

Appumm ma :hren sa, ma sel-m la. saunas.

To all 'whomt mayomem:

Be it known that I, Cmmms Basson HOWELL, a citizengof the United States, residi at Los A les, in the county Aof Los Ange es, State o California, have invented new and useful Improvements inRim Expanding'and Contracting Tools, ofqhich the following is a specification.

This invention relates to tools or devices adapted for use in expanding and contracting rims such as are used for demountable rims for automobile tires; and it is,an object of this invention to provide a simple, effective and powerful form of instrument for the purposes stated.

This tool is applicable to any form of contractive and` expansive rim. Some such rims are formed entirel of a angle ringutting en s3 others are formed with two endless-sideor iiangeaand a central rim memberwhic has abutting ends; and in any such construction it 1s necessa to contract and expand the member whic order to takeo or put on a tire.

There are several advanta of my improved device overY those whlch are now in use; and these advantages, and the features of construction and operation by which the advantages are obtained, will best appear from the follo wherein I describe in detail va preferred form of my improved devi reference being had for this purpose t e accompanying drawings in whlch F1 re 1 1s a plan showing the application o my device to a rim for the purpose of expandm it; Fig. 2 is a similar view showing the a p ication of the device for the purpose o contract' the rim; Fig. 3 is a section taken as indicatedbylineS-onFi .2;Fig.4isan enlarged detail section ta en on line 4 4 of Fig. 3; Fig. 5 is an enlarged section taken as indicated by line 5-5 on Fig. 3; Fig. 6 is an enlarged view taken in the as ect indicated by line 6-6 on Fig. 2; an Fig. is an enlarged plan ofv certain parts as shown in Fig. 1.

In the drawings the numeral 10 desi ates any t pical rim or rim member whi has abuttlng ends 11. These ends 11 are usually provided with some means for locking or securing them in pro r abutted alinement when they are in t e position shown in Fig. 2; but such securing or locking means has nothing to with the present invention.

has abutting ends, in`

specification,

My improved device preferably comprises a sliding member 15 carrying at one end two. arms 16 hinged to the body at 17, and slid v on a bar 18 which pro'ects out of the ot en end of 'member 15. 'llhis member 15 may preferably be made of sheet or plate bent to the dat tubular ferm shown m Fig. 4 so as to form an inclosing boxshaped slider on the bar 18. In other words, the bar 18 and the member 15 are telescopically connected, the bar 18 sliding freely tllrugh the member 15 and in certain positions projecting at both-ends beyond said member.V At its u per edges this sheet or plate metal which orms member 15 is bent mwardly, and the edges laid together, so as to form a web 19 in which notches 20 are cut or otherwise formed, for the purpose hereinafter described.

Upon the bar 18 I mount a pivot 25 to carlg a 1ever26 adapted to be operated by han This lever is preferably biurcated at 27 to extend on opposite sides of bar 18. At 29 a pair of thrust bars 30 is pivoted to lever 26; and these thrust bars 30 carry between their other ends a p in, or other equivalent member, as shown at 31 which is adapted to engage in the notches 20 in member 15. From the description here 'ven, and from inspection of Fig. 3 of the rawxngs, 1t will be readily seen that movement of iever 26 about its pivot 2'5, with the in 81 set in a notch 20, will cause relative idm or longitudinal movement of bar 18 and sli er 15. Bar 18 is provided with a hook 18'L on its end while arms 16 are rovided with hooks 16 on their ends, sald hooks adapted to hook over the rim 10. When the device 1s being used to contract a rim, it is placed upon the rim in the position shovgn in Fi 2 and 3, with the arms 16 swung* inwar y close together to engage a part of the rim close to one of the ends 11, and the hook 18* enga d over and opposite part of the rim. The pin 31 having been dropped into an appropriate notch 20, movement of the lever 26 in the direction indicated by the arrow in Fig. 3 will then move slider 15 in the direction indicated by the arrow, and thus have the e'ect of pulling the opposite engaged portions of the riin toward each other. This will cause the end of the rim to be pulled inwardly so that one end of the rim will slip inwardly past the other end and allow the rim to be contracted. Once one end of the rim has passed inwardly 55;- the directions indie and slipped inside the other end of the rim, the rim may then be easily contracted suiciently to remove it from inside a tire. The device may be easily applied and adJusted at any appropriate point on the rim, the pin 31 vmay always be easily dropped into any apropriate notch 20, to give the maximum e estive. movement and to give the maximum eective application of power. If one movement of the lever 26 does not suiice, with thepin 31 placed in any one articular notch, the pin is eqiily moved rom notch to notch without t e necessity of removing the device from the rim, or of changing its position in any way. But the device is so proportioned that one movement is usually suicient.

It will be noted that all of the strains put upon the dierent members of this device are centrally distributed and balanced. Pin 31 bears centrally (substantially in the central vertical plane of thei device) upon member 15. Pin 31 is carried b two thrust bars 30 which connect witlit e lever 26, located directly over the bar 18; and bar 18 is in direct central line with member 15 and with the two arms 16. O

When the device is used to expand a rim the ends of slide bar 18 and of arms 16 are placed against the interior surface of the rim, as is indicated in Fig. 1. The arms .16 are spread apart and are put on opposite sides of the abutting ends 11; so that as thrust pressure is put u on the arms 16, in by the arrows in Fig. 1, there is a tendencv not only to push the end parts 11 radially outwardly, but also to move and spread them in the opposite circumferentia the arrows in Fig. 1. 4This action is o f at importance; for it very greatly faci itates eas expansion of the rim.

en the parts are in the 0 in Fig. 1, the pin 31 is place in anappropriate notch and the lever 26 is moved in .a direction opposite to that in which it is moved for contracting the rim: If one movement does not su ce, the pin ma be 'easily moved from notch to notch wit out chan g the posi 'on o f the device. l3nt usua y one movement is amply suiiicient for a complete operation of expandingncr contracting a rim of any given size. e notches and pin a'ord very easy means of adjusting the device to dierent sizes of rims.

When the device is not in use, the arms l 16 may be folded back around in a direction indicated by the arrows in Fig. 2, against member 15; and they are preferablv made of about the same le h as member 15 in order to facilitate fol ing of the device to the smallest possible length The bar 18 is taken out o member 15 and the arts 26 and 30 are laid in position paralle to and and l directions indicated by` sition shown ends for engaging a inst the bar 18. The whole device is t en in compact form 'ready to be placed in the tool box.

It will be seen that the device is articularl easy to apply and adjust. ere are no lts, nuts, etc., to loosen and. set each time the device is applied toa rim of different size. The too is alwa s ready for use on a rim of any size. And, urthermore, its application to a rim is easy because it has no loose parte that must be held in place by hand preparation to or during the operation.

From the foregoing detailed description of a preferred aud specific, form of my device my invention will be readily understood. Althou h I have proceeded to describe this pre erred and s cie form in some detail, I have done so or the urpose fof rendering my device clearly un erstood invention, I claim:

1. In a device of the class described for expanding and contracti the metal rim of automobi e tires the com ination with two members extending in the same direction so secured together as to ermit free relative longitudinal movement ut to prevent relative movement in other directions, means at the outer opposite ends of said members for engaging a tire rim, a lever pivotally secured to one of said members and means for detachablg'eonnecting said lever at a point removed m its plivot to the other member whereby turning t e lever will cause a relative longitudinal movement of the members.

2. In a device of the class described for expand' and contracting the metal rim of automob' e tires the combination with two members extending in the same direction so secured together as to rmit free relative longitudinal movement ut to prevent relative movement in other directions, means at the outer end of one of said members to engage a tire rim two arms so pivoted to the opposite end the other member as to assume any desired angular position from that close inst the sides of the member to a parai el position in prolongation thereof, the said arms having means at their outer the rim, a lever pivotally said members and means for detachahl connecting said lever at a point remov from its pivot to the other member whereby turnin the lever will cause a relative longitudine movement of the members.

secured to one c expanding and contracting the metal rim of automobile tires the combination with two members telescoping each other permitting free relative longitudinal movement, the telescoping portions being of suicient extent to maintain the alinement and prevent undue bending and binding under stress, means at the outer end of one member for engaging the rim, two arms hinged to the opposite end of the other member having means at their outer ends for engagin the rim, a lever pivotall secured to one o said members, a thrust ar or link pivoted at one end of said lever at a point removed from its pivot, and means for detachably engaging the opposite end of said thrust bar with' the other member at di'erent points whereby turning the lever will cause a relative longitudinal movement of said members in either direction.

4. In a device of the class described for expanding and contractin the metal rim of automobile tires the com ination with two telescoping bars, one being in the form of a fiat member and the other in the form of a flattened tube fitting the first member and permitting free relatlve longitudinal movement, the said iat member having means at its outer end for engalging the rim and the said tubular member aving notches or projections on its upper surface, two Hat arms pivotally secured to the end of said tubular member and adapted to be folded against the sides of said member or to any angular position and having means at their outer ends for engagin the rim, a lever pivoted to said flat mem r near its free end, and a thrust member or link ivoted to said lever at a point removed rom its pivot having at its free end means for engaging said notches or projections in said tubular member.

5. In a device of the class described for expanding and contracting the metal rim of automobile tires the combination with two telescoping members freely movable longitudinally with reference to each other, the inner member having means at one end for engaging the rim, two arms pivoted to the end of the outer tubular member and adapted to constitute a continuation thereof or to fold back against the sides thereof, a lever pivoted to said inner member near its free end and adapted to be folded down to said telescoping members when not in operation, a thrust bar or link pivoted to said lever having at its free end means for engaging said outer tubular member in different positions whereby turning the lever will cause relative longitudinal movement of the teleseoping members, the said thrust bar or link being so mounted as to be adapted to fold in against said lever when not in use.

In witness that I claim the foregoing I have hereunto subscribed my name this 22d day of March, 1918.

CHARLES BASCOM HOWELL.

Witness: i

VIRGINIA I. Baumann. 

